Early efforts -- Elements of a successful machine -- The "Sewing-Machine Combination" -- Less expensive machines -- Appendixes: Notes on the development and commercial use of the sewing machine -- ...

— Freezing hands can be a disadvantage in a snowball fight. So Erica McFadden used her imagination and some help from teachers and parents to create an invention to rid the world of that problem. Her ...

Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www ...

Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www ...

Once you've patented and manufactured a prototype of your invention, you're ready to start promoting it. Promoting your new invention means finding a company that pays you royalties and a licensing ...